Saturday 01 November 2003

In this episode

Professor Robin Dunbar believes that the only substantive difference between humans and apes is religion and that humans developed bigger brains, and therefore our superior cognitive abilities, so that we can encompass religion.

A small group of otherwise normal people who have damage to a part of the brain called the amygdala, lose the abilitiy to recognise fear and perceive other people's intentions, and Professor David Skews believes that there is a genetic link connected to alterations on the X chromosome.